// Copyright 2019 ETH Zürich, Thomas Schöps
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
//    this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors
//    may be used to endorse or promote products derived from this software
//    without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.


#include "libvis/logging.h"
#include <gtest/gtest.h>

#include "libvis/util.h"

using namespace vis;

TEST(Util, erase_if_odd) {
  vector<int> test = {1, 2, 3, 4, 5, 6};
  erase_if(test, [](int i) { return i % 2 == 1; });
  vector<int> gt = {2, 4, 6};
  ASSERT_EQ(test.size(), gt.size());
  for (usize i = 0; i < test.size(); ++ i) {
    EXPECT_EQ(gt[i], test[i]);
  }
}

TEST(Util, erase_if_full_clear) {
  vector<int> test = {1, 2, 3, 4, 5, 6};
  erase_if(test, [](int /*i*/) { return true; });
  vector<int> gt = {};
  ASSERT_EQ(test.size(), gt.size());
  for (usize i = 0; i < test.size(); ++ i) {
    EXPECT_EQ(gt[i], test[i]);
  }
}

TEST(Util, erase_if_no_deletion) {
  vector<int> test = {1, 2, 3, 4, 5, 6};
  erase_if(test, [](int /*i*/) { return false; });
  vector<int> gt = test;
  ASSERT_EQ(test.size(), gt.size());
  for (usize i = 0; i < test.size(); ++ i) {
    EXPECT_EQ(gt[i], test[i]);
  }
}
